Give more information when isc_mempool_destroy() dies with an assertion failure, in the hope that we'll be able to fix the bug one day.
Give more information when isc_mempool_destroy() dies with an assertion
failure, in the hope that we'll be able to fix the bug one day.

each/bind9-collab,each/bind9-collab,pecharmin/bind9,pecharmin/bind9,pecharmin/bind9,pecharmin/bind9,each/bind9-collab,each/bind9-collab,pecharmin/bind9,each/bind9-collab,each/bind9-collab,pecharmin/bind9